I've been thinking about the noise which Becky makes and there are a few things to say about it,First port of call will be trying to see if the aux belt removed gets rid of the sound. Though I fear it might be like yours, with the noise coming from the timing belt. I definitely think the tensioner has something to do with it as I pretty much slid the old one off, and the new one on without really understanding the orientation / settings but now I have the photo above to refer to
I would have thought Gates kits would be up there with OEM, though none of us ever had this noise from new on the original parts so perhaps it's a side effect of the aftermarket bits
Sad to hear that even after 5 years the sound doesn't go away.
I will get to the bottom of it, even if it means buying an OEM kit and doing the job again - I was already a fan of genuine parts but this would cement that logic for good if it turns out to be the cause.
1) It does sound very like a tensioner bearing in the early stages of failure.
2) The noise can't be isolated using a stethoscope or "listening stick" in the traditional way, but is easily and quickly traced down with a "listening tube"
3) Gates is my favoured brand, luckily sold by my local factor, so I tend to use nothing else and find the quality second to none. As far as I can remember, I've never known one, or the included tensioner/water pump/etc, to fail in normal service.
4) Aye, it's strange, but the noise is really just the same now as when I fitted it. It did quieten down a little during the first couple of weeks after fitting but then settled down to about 75% of the original volume and has stayed the same ever since.
5) Most interesting of all perhaps? is that garages I'm friendly with tell me the noise Becky is making is not all that unusual. By no means do they all do it but it's a recognized thing with them - Seems you either get one that doesn't do it or you get one that does. The garage where I bought the car actually had a small Ford (Ka I seem to remember?) anyway, with the same engine in it and it was making exactly the same noise. Becky was making exactly the same noise when bought as she does now and I put a full kit in her ie. belt, tensioner, water pump.
6) The only thing I would say listening to yours is that it's quite a lot louder than either Becky's noise, the car which was in the garage I bought her from or any other ones I've heard when out and about in the street. Of course this may be due to the way your recording device is making it sound. I'd say Becky's, and others I've heard, is a noticeable noise but not intrusive - you have to listen quite hard to hear it inside the car with windows closed but once you know it's there you always are aware of it. Mrs J says she's no idea what I'm talking about - Noise? what noise? she says.